BBC America will co-produce and premiere An Adventure in Space and Time as part of the channel's celebrations to mark the 50th anniversary of Doctor Who. An Adventure in Space and Time will tell the story of the genesis of Doctor Who - which first aired on November 23, 1963 - and the many personalities involved.

Announced today, David Bradley (Harry Potter) is set to play the first ever Doctor, the iconic William Hartnell, in the drama written by Mark Gatiss (Sherlock, Doctor Who), who will also serve as executive producer alongside Steven Moffat (Doctor Who, Sherlock) and Caroline Skinner (Doctor Who, The Fades). An Adventure in Space and Time (1x90) is a co-production between BBC Cymru Wales and BBC AMERICA. The drama will premiere later this year on BBC AMERICA.

The BBC's Head of Drama Sydney Newman, credited with the creation of the show, will be portrayed by Brian Cox (The Bourne Supremacy, Bourne Identity) and the producer, Verity Lambert, by Jessica Raine (Call the Midwife). The director of the first ever episode An Unearthly Child, Waris Hussein, will be played by Sacha Dhawan (History Boys, Last Tango In Halifax).

Mark Gatiss, writer and executive producer said: "What a cast! I'm utterly delighted that everyone's favorite Time Lord will be in such brilliant and stellar company. We have a terrific team who can't wait to tell the fascinating and surprising story of how the Doctor began his journey through Space and Time."

Richard De Croce, SVP Programming, BBC America added: "We're excited to work with BBC Cymru Wales on this co-production, allowing us to bring An Adventure in Space and Time to Doctor Who fans on both sides of the pond. Mark and the talented team behind the project are sure to create a special that will delight audiences while commemorating this incredible series' 50th anniversary."